NVIDIA GeForce GT 640 OEM Rebrand vs AMD Radeon RX 460

VS

NVIDIA GeForce GT 640 OEM Rebrand

AMD Radeon RX 460

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 2GB VRAM Radeon RX 460 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 460 's Advantages

Released 4 years and 4 months late

Boost Clock1200MHz

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (112.0GB/s vs 38.40GB/s)

752 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon RX 460 +418%

2.15 TFLOPS

GeForce GT 640 OEM Rebrand

VS

Radeon RX 460

Graphics Card

Apr 2012

Release Date

Aug 2016

GeForce 600

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1090 MHz

-

Boost Clock

1200 MHz

800 MHz

Memory Clock

1750 MHz

Memory

1536MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

192bit

Memory Bus

128bit

38.40GB/s

Bandwidth

112.0GB/s

Render Config

-

Compute Units

14

3

SM Count

-

144

Shading Units

896

24

TMUs

56

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

1024 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

19.20 GPixel/s

17.28 GTexel/s

Texture Rate

67.20 GTexel/s

-

FP16 (half)

2.150 TFLOPS

414.7 GFLOPS

FP32 (float)

2.150 TFLOPS

34.56 GFLOPS

FP64 (double)

134.4 GFLOPS

Board Design

75W

TDP

75W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

Baffin

GF116-150-A1

GPU Variant

Baffin PRO

Fermi 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.17 billion

Transistors

3 billion

238 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.4

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